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42103113231 = 3612111090387
BaseRepresentation
bin100111001101100010…
…101000011000001111
311000200020102202111010
4213031202220120033
51142211344110411
631201503500303
73020232362154
oct471542503017
9130606382433
1042103113231
1116946123153
1281b02b7693
133c7c9c046a
142075a2822b
1511664667a6
hex9cd8a860f

42103113231 has 16 divisors (see below), whose sum is σ = 57328239488. Its totient is φ = 27477727200.

The previous prime is 42103113211. The next prime is 42103113271. The reversal of 42103113231 is 13231130124.

It is not a de Polignac number, because 42103113231 - 231 = 39955629583 is a prime.

It is a super-2 number, since 2×421031132312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42103113198 and 42103113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42103113211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506581 + ... + 583806.

It is an arithmetic number, because the mean of its divisors is an integer number (3583014968).

Almost surely, 242103113231 is an apocalyptic number.

42103113231 is a deficient number, since it is larger than the sum of its proper divisors (15225126257).

42103113231 is a wasteful number, since it uses less digits than its factorization.

42103113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090662.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 42103113231 its reverse (13231130124), we get a palindrome (55334243355).

The spelling of 42103113231 in words is "forty-two billion, one hundred three million, one hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 61 183 211 633 12871 38613 1090387 3271161 66513607 199540821 230071657 690214971 14034371077 42103113231